[17r]

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perhaps any other

The blackish face of the adult adult male when adult when is [text excised] is illuminated by red, bluish whitish bars, & the male when adult uses chiefly in their at this age the nose, with a stripe leading from it becomes brilliant red. There is a crest of hair on the forehead & on the chin a yellow beard. "Toutes les parties fl supérieures de leur cuisses et le grand espace nu de leur fesses sont egalement également colorés du rouge le plus vif avec un mélange de bleu qui ne manque réellement pas d' élégance."*(50) When the animal is excited all the naked coloured parts assume [text obscured] much more brilliantly coloured tinted, I

[Descent 2: 292-3: "The face at this age becomes of a fine blue, with the ridge and tip of the nose of the most brilliant red. According to some authors the face is also marked with whitish stripes, and is shaded in parts with black, but the colours appear to be variable. On the forehead there is a crest of hair, and on the chin a yellow beard. "Toutes les parties supérieures de leurs cuisses et le grand espace nu de leurs fesses sont également colorés du rouge le plus vif, avec un mélange de bleu qui ne manque réellement pas d'élégance."31 When the animal is excited all the naked parts become much more vividly tinted. Several authors have used the strongest expressions in describing these resplendent colours, which they compare with those of the most brilliant birds. Another most remarkable peculiarity is that when the great canine teeth are fully developed, immense protuberances of bone are formed on each cheek, which are deeply furrowed longitudinally, and the naked skin over them is brilliantly-coloured, as just described. (Fig. 67.)
31 Gervais, 'Hist. Nat. des Mammiféres,' 1854, p. 103. Figures are given of the skull of the male. Desmarest, 'Mammalogie,' p. 70. Geoffroy St.-Hilaire and F. Cuvier, 'Hist. Nat. des Mamm.' 1824, tom. i."]